AU2003218684A1 - Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof - Google Patents

Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof

Info

Publication number
AU2003218684A1
AU2003218684A1 AU2003218684A AU2003218684A AU2003218684A1 AU 2003218684 A1 AU2003218684 A1 AU 2003218684A1 AU 2003218684 A AU2003218684 A AU 2003218684A AU 2003218684 A AU2003218684 A AU 2003218684A AU 2003218684 A1 AU2003218684 A1 AU 2003218684A1
Authority
AU
Australia
Prior art keywords
meth
esters
acrylic acid
cleaning plate
liquids containing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2003218684A
Inventor
Volker Diehl
Ulrich Hammon
Ulrich Jager
Klaus Joachim Muller-Engel
Volker Schliephake
Jurgen Schroder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7714105&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2003218684(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BASF SE filed Critical BASF SE
Publication of AU2003218684A1 publication Critical patent/AU2003218684A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation

Abstract

In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differential pressure over all trays of at least 0.5 mbar/tray.
AU2003218684A 2002-03-13 2003-03-04 Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof Abandoned AU2003218684A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10211273A DE10211273A1 (en) 2002-03-13 2002-03-13 Cleaning a plate-type column that has been used to rectify (meth)acrylic acid and/or (meth)acrylate esters by passing a basic liquid downwards through the column comprises passing a gas upwards through the column
DE10211273.8 2002-03-13
PCT/EP2003/002186 WO2003076385A1 (en) 2002-03-13 2003-03-04 Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof

Publications (1)

Publication Number Publication Date
AU2003218684A1 true AU2003218684A1 (en) 2003-09-22

Family

ID=7714105

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003218684A Abandoned AU2003218684A1 (en) 2002-03-13 2003-03-04 Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof

Country Status (7)

Country Link
US (1) US7331354B2 (en)
EP (1) EP1485342B2 (en)
JP (1) JP4980557B2 (en)
AT (1) ATE509902T1 (en)
AU (1) AU2003218684A1 (en)
DE (1) DE10211273A1 (en)
WO (1) WO2003076385A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237061A1 (en) 2002-08-09 2004-02-19 Basf Ag Process for cleaning apparatus in which organic solvents containing (meth) acrylic acid have been treated and / or produced
DE10347664A1 (en) 2003-10-09 2004-12-02 Basf Ag Separation of acrylic acid from liquid mixture, for use as monomer, by rectification in column in presence of diacrylic acid as polymerization inhibitor in upper part of column
US9815097B2 (en) 2011-09-27 2017-11-14 Rohm And Haas Company Method for cleaning a (meth)acrylate ester process tank
CN104384132A (en) * 2014-11-05 2015-03-04 华玉叶 Descaling method of reactor
JP6037081B1 (en) * 2015-08-07 2016-11-30 ダイキン工業株式会社 Purification method of acrylic acid derivatives

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2306008A1 (en) * 1973-02-07 1974-08-08 Siemens Ag COLUMN FOR CONTACTING GASES OR VAPORS AND LIQUIDS
US3969094A (en) * 1973-12-11 1976-07-13 E. I. Du Pont De Nemours And Company Flue gas scrubber
DE19536179A1 (en) 1995-09-28 1997-04-03 Basf Ag Process for the rectificative separation of unsaturated carboxylic acids from solvents
DE19746688A1 (en) 1997-10-22 1999-04-29 Basf Ag Method for cleaning parts of plant used for producing and processing (meth)acrylic esters
MY119701A (en) 1999-03-02 2005-06-30 Nippon Catalytic Chem Ind Method for production of (meth) acrylic acid and/or (meth) acrylic esters
DE10000854A1 (en) * 2000-01-12 2001-07-19 Basf Ag Cleaning separating column, used for removing volatiles from aqueous polymer dispersions or suspensions after polymerization, involves contacting inside surface with aqueous solution of basic compound
DE10237061A1 (en) * 2002-08-09 2004-02-19 Basf Ag Process for cleaning apparatus in which organic solvents containing (meth) acrylic acid have been treated and / or produced

Also Published As

Publication number Publication date
EP1485342A1 (en) 2004-12-15
JP2005527515A (en) 2005-09-15
US7331354B2 (en) 2008-02-19
US20050115590A1 (en) 2005-06-02
EP1485342B1 (en) 2011-05-18
JP4980557B2 (en) 2012-07-18
WO2003076385A1 (en) 2003-09-18
DE10211273A1 (en) 2003-03-06
EP1485342B2 (en) 2018-07-04
ATE509902T1 (en) 2011-06-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase